CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 12 enrolled / 12 target
Drug / intervention
Lipopolysaccharidebiological
Likely dose
1 μg LPS injected intratumorally over approximately one minuteAI-extracted
Key inclusion· 4
  • Age 18–99 years
  • Advanced intra-abdominal tumor, metastatic or recurrent, biopsy-proven, digestive tract origin
  • At least two index non-visceral intra-abdominal tumors >1 cm³ in volume, grossly visible, amenable to biopsy and injection
  • Scheduled for standard-of-care abdominal laparoscopic surgery and potentially eligible for definitive tumor removal
Key exclusion· 6
  • Pregnant or lactating
  • Investigational drug use within 30 days prior to enrollment
  • Immunosuppressive medication including corticosteroids within 30 days prior to enrollment
  • Active chemotherapy or radiotherapy within 4 weeks of investigational agent injection

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05751837
NCT05751837Phase 1CompletedUpdate Overdue (0.3/mo)Completion was 25mo ago

Feasibility Study of Intra-Tumoral Lipopolysaccharide Immunotherapy for Intra-Abdominal Tumors

Patrick Wagner, MD, FACS·interventional·Posted Mar 2, 2023·Updated Jun 15, 2026

In Brief

A Phase 1 clinical trial evaluating Lipopolysaccharide for Abdominal Cancer and Malignancy. Completed, enrolled 12 participants across 2 sites.

Signals

Enrollment appears stalled

Detailed Summary

The purpose of this research study is to determine whether a sterile bacteria wall chemical, called lipopolysaccharide (LPS), can be injected safely into abdominal tumors during routine laparoscopic surgery performed as a preliminary procedure in patients who will subsequently undergo a larger planned operation to remove abdominal tumors. The researchers will biopsy the tumor before injection and then again at the time of the larger operation to assess whether any effect of the treatment can be measured.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 1CompletedFinished
202420252026
First PostedMar 2, 2023
Enrollment StartMar 16, 2023
Primary CompletionMay 30, 2024
TodayJul 2, 2026
Enrollment to primary: 1.2 yearsPosted 3.3 years ago

Arms & Interventions

Treatment Armexperimental

Injection of Lipopolysaccharide into one abdominal tumor

Biological: Lipopolysaccharide

Interventions

Lipopolysaccharidebiological

One tumor will be injected with 1 ug LPS (investigational drug) over approximately one minute